2026 NPPES data Surgery Physician NPI 1427041367 MD
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Semur Rajan, MD

Surgery Physician in Mansfield, Ohio. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 36,191 in Surgery Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
684
Medicare Part D claims · 37 beneficiaries · Surgery Physician avg: 169
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Semur Rajan, MD filed 684 Medicare Part D claims in 2023 as a Surgery Physician in Mansfield, Ohio, prescribing 96% generic.

684
Part D claims, 2023
96%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Semur Rajan, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

684 Top 31% higher than 69% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic, not verified)

Semur Rajan, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Semur Rajan, MD?

Quality data not reported

NPI registry status

Active

Issued 08/25/2005

NPI 1427041367

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

684 305% vs specialty avg

2023 prescription claims

Specialty avg: 169

Specialty distribution in Ohio

How Surgery Physician compares to other specialties among Ohio providers

Ohio providers

Largest specialties in Ohio (% of in-state providers)

Case Manager/Care Coordinator - 10.9%Case Manager/Care Coordinator10.9%Student in an Organized Health Care Education/Training Program - 4.7%Student in an Organized Health Care Education/Training Program4.7%Licensed Practical Nurse - 4%Licensed Practical Nurse4%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Registered Nurse - 3.4%Registered Nurse3.4%Pharmacist - 3.4%Pharmacist3.4%Surgery Physician - 0.4%Surgery Physician0.4%
Largest specialties in Ohio (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Surgery Physician. Verify directly:

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Semur Rajan, MD appears in the CMS NPPES registry as a Surgery Physician provider holding MD credentials at 275 CLINE AVE, Mansfield, OH, 44907, with a listed phone of (419) 756-1230. NPI 1427041367 was issued on 08/25/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Rajan most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 684 prescription claims written by this provider, covering 37 Medicare beneficiaries and totaling roughly $21K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 20.3%. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

275 CLINE AVE
Mansfield, OH 44907

Provider Details

NPI 1427041367
Specialty Surgery Physician
Credentials MD
Gender Male
NPI Issued 08/25/2005

License & disciplinary context - Ohio OMB 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 - they are NOT specific to Semur Rajan, MD. To verify Semur Rajan, MD's current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

Semur Rajan, MD - brand share 4.0%
Surgery Physician average

4% brand-name claims vs 96% generic, on 684 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

684
Total Claims
$21K
Total Drug Cost
37
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,305
Total Day Supply
38,485
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$9K
Generic Drug Cost
$13K
Opioid Claims
139 (20.3% rate)
Antibiotic Claims
12

Patient Demographics

Average Patient Age
70.9 years
Avg HCC Risk Score
1.24
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Semur Rajan, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Alprazolam
90
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
76
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
61
Metoprolol Succinate
31
Amlodipine Besylate
29
Triamterene-Hydrochlorothiazid
Triamterene/Hydrochlorothiazid
29
Lisinopril
27
Gabapentin
23
Meloxicam
21
Atorvastatin Calcium
14

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Surgery Physician Overview

How Semur Rajan, MD fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

Semur Rajan, MD's 684 claims are above the specialty average of 169.

Nearby Surgery Physician Providers in Ohio

Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as Rajan.

Compare Surgery Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Ohio medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Surgery Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Semur Rajan, MD's specialty?
Semur Rajan, MD specializes in Surgery Physician and practices in Mansfield, Ohio. Credentials: MD.
How much does Semur Rajan, MD prescribe under Medicare Part D?
In 2023, Semur Rajan, MD wrote 684 Medicare Part D claims totaling $21K in drug costs for 37 beneficiaries.
Where is Semur Rajan, MD located?
Semur Rajan, MD is located at 275 CLINE AVE, Mansfield, OH, 44907. Phone: (419) 756-1230.
What is Semur Rajan, MD's NPI number?
Semur Rajan, MD's National Provider Identifier (NPI) is 1427041367, issued on 08/25/2005.
Does Semur Rajan, MD prescribe more brand-name or generic drugs?
Semur Rajan, MD's prescribing is 4% brand-name and 96% generic drugs by claim count, with $9K in brand drug costs.
Does Semur Rajan, MD prescribe opioids?
Yes, Semur Rajan, MD had 139 opioid claims in 2023 with an opioid prescribing rate of 20.3%.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does Semur Rajan, MD prescribe most often?
Based on 2023 Medicare Part D data, Semur Rajan, MD's most frequently prescribed drugs include Alprazolam, Oxycodone-Acetaminophen, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Semur Rajan, MD accept Medicare?
Semur Rajan, MD appears in CMS Medicare data with 684 Part D claims and 37 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Semur Rajan, MD's credentials?
Semur Rajan, MD's NPI is 1427041367 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.